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gpio: raspberrypi-exp: decrease refcount on firmware dt node

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[ Upstream commit 85af74c474b21940e88483fd48f6094145c89d97 ]

We're getting a reference RPi's firmware node in order to be able to
communicate with it's driver. We should decrease the reference count on
the dt node after being done with it.

Fixes: a98d90e7d5 ("gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox service")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicolas Saenz Julienne 2018-12-10 17:50:05 +01:00 committed by Greg Kroah-Hartman
parent e1bb74ba45
commit 02ef84c0b2
1 changed files with 1 additions and 0 deletions
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drivers/gpio/gpio-raspberrypi-exp.c
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@ -206,6 +206,7 @@ static int rpi_exp_gpio_probe(struct platform_device *pdev)
}
fw = rpi_firmware_get(fw_node);
of_node_put(fw_node);
if (!fw)
return -EPROBE_DEFER;